US 12,240,101 B2
Vacuum gripper device with foam layer secured by magnetic attraction
Laurent Joulin, Issy-les-Moulineaux (FR)
Assigned to PIAB AKTIEBOLAG, Danderyd (SE)
Filed by JOULIN CEMMA, Etampes (FR)
Filed on May 6, 2021, as Appl. No. 17/313,696.
Claims priority of application No. 20315239 (EP), filed on May 13, 2020.
Prior Publication US 2021/0354314 A1, Nov. 18, 2021
Int. Cl. B25J 15/06 (2006.01); F16B 1/00 (2006.01)
CPC B25J 15/0691 (2013.01) [B25J 15/0683 (2013.01); F16B 1/00 (2013.01); F16B 2200/83 (2023.08); F16B 2200/99 (2023.08)] 24 Claims
OG exemplary drawing
 
1. A foam vacuum gripper device comprising at least a vacuum gripper body and at least one foam layer arranged on a bottom surface of the vacuum gripper body, the foam vacuum gripper device being characterized in that at least the foam layer is secured to the vacuum gripper body by way of a magnetic attraction between the bottom surface of the vacuum gripper body and the foam layer;
wherein the device includes an attractant layer and a magnetic layer, one of the layers included in the vacuum gripper body and the other layer included in the foam layer, wherein the device includes a series of air ducts extending at least through the foam layer, the magnetic layer and the attractant layer;
wherein the magnetic layer is a layer that is entirely magnetic over its entire surface,
wherein said attractant layer is a layer of rubber steel;
wherein said attractant layer is itself a sealing layer;
wherein the foam vacuum gripper device does not comprise an additional sealing layer, other than the attractant layer, between the vacuum gripper body and the foam layer.